Mining Incidents

SISQUOC AGGREGATES Metal/Non-Metal

Santa Maria, Santa Barbara County, CA  ·  Active
MSHA Mine ID: 0401959

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Fatalities
0
Total incidents
16
Years on record
2000–2015
Latest incident
Jun 2015
Compliance record
MSHA citations since 2001
191
citations
44
significant & substantial
$137,518
proposed penalties
$134,164
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 3,340 0 0 0.0
2025 Q3 520 0 0 0.0
2025 Q2 3,929 1 0 254.5
2025 Q1 520 1 0 1923.1
2024 Q4 3,807 0 0 0.0
2024 Q3 3,536 2 0 565.6
2024 Q2 3,369 0 0 0.0
2024 Q1 3,484 1 0 287.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

16 on file

2015 · 1 incident

June 25, 2015 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Martin Marietta Northern California Aggregates,LLC · Caught in, under or between a moving and a stationary object

IE and another EE were replacing the Media Recovery Box for the Heavy Media plant. As they were removing the part, one side slipped catching IE's left index finger between the part and the screen deck. IE received 3 stitches and a fracture of the left finger.

2011 · 1 incident

October 1, 2011 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Martin Marietta Northern California Aggregates,LLC · Over-exertion (Not Elsewhere Classified)

EE reported to his foreman that he injured himself while cleaning out the east side crusher sometime in October 2011. He indicated that he understands that he violated company policy for not informing his supervisor at the time of the injury.

2010 · 3 incidents

December 6, 2010 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Martin Marietta Northern California Aggregates,LLC · Over-exertion in lifting objects

Plant Operator strained his low back on Monday, 12/06/10, while shoveling sand. On Friday, 12/10/10, the Plant Operator was carrying a 20 lb Come-Along up some stairs causing further strain to his low back. On Monday, 12/13/10, the employee reported the injury to his supervisor and that he was suffering from severe pain in his low back.

July 19, 2010 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Martin Marietta Northern California Aggregates,LLC · Over-exertion (Not Elsewhere Classified)

Employee reported that on 7/19, as he was attaching a water hose to a water line, he felt a pain in his lower back. He did not report it to his supervisor until the next day, 7/20 after clocking in. He was seen by the local clinic which took him off work for a back and hip strain. His lost time began on 7/21.

2009 · 2 incidents

September 11, 2009 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Martin Marietta Northern California Aggregates,LLC · Struck against a moving object

Employee reported that the front-end loader he was operating shifted to one side when it hit some debris in a roadway. The motion of the loader cause a twinge in his right hip area.

September 2, 2009 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Martin Marietta Northern California Aggregates,LLC · Struck against a moving object

During normal operation of his haul truck, the employee reported that the bouncing of the truck and occasionally the bumping during loading caused a back strain.

2008 · 1 incident

2007 · 1 incident

2006 · 2 incidents

July 7, 2006 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY

Employee was assisting a co-worker who was welding a Seco Shaker frame when he received an arc flash. Employee did not feel the injury was severe enough to report right away. Informed employer on 7/14/06.

2001 · 2 incidents

September 18, 2001 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Hanson Aggregates West Inc · Struck against a moving object

BOUNCING AROUND IN THE LOADER/OFF ROAD CONDITIONS IN WASHED SAND AREA NOT SUITABLE FRO HIGH SPEED TRAVEL.

2000 · 3 incidents

December 18, 2000 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Hanson Aggregates West Inc · Contact with hot objects or substances

EE WAS DISCONNECTING POWER SUPPLY TO JAW CRUSHERWHEN HE HIT THE DISCONNECT HANDLE. THE HANDLE WAS HOT AND CREATED A HEAT FLASH.

September 6, 2000 CA · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler HANDTOOLS (NONPOWERED)
Hanson Aggregates West Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS CUTTING A HOSE WITH HIS OWN KNIFE &SLIPPED, PUTTING KNIFE INTO HIS OWN THIGH.

January 28, 2000 CA · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler DISORDERS (REPEATED TRAUMA)
Hanson Aggregates West Inc · Over-exertion (Not Elsewhere Classified)

EE HAD BEEN DIAGNOSED W/CARPAL TUNNEL & REPORTED IT ON 1/28/00. HE WAS PERFORMING SHOVELING AND OILING DUTIES WHEN HE FELT PAIN IN BOTH HANDS. EE WAS SCHEDULED FOR SURGERY ON 4/28/00 BUT LEFT PLANT ON 4/19/00.